1pc Water Flow Switch Metal Pump Pressure Sensor Switch Automatic Controller Switch with G3 4 Interface sold2024 3 cm Mode of Connection: B0DK1NFLD9 3 cm Mode of Connection: VCC trig(T) Echo(R) GND (VCC supply 5V Quantity)： Internal Hex Set Screws 4 40x1 8" 20PCS Internal Hex Set Screws 4 40x3 16" 20PCS Internal Hex Set Screws 4 40x1 4" 20PCS Internal Hex Set Screws 4 40x5 16" 20PCS Internal Hex Set Screws 6 32x1 8" 20PCS Internal Hex Set Screws 6 32x3 16" 20PCS Internal Hex Set Screws 6 32x1 4" 20PCS Internal Hex Set Screws 6 32x5 16" 20PCS Internal Hex Set Screws 8 32x3 16" 20PCS Internal Hex Set Screws 8 32x1 4" 20PCS Internal Hex Set Screws 8 32x5 16" 20PCS Internal Hex Set Screws 10 24x1 4" 20PCS Internal Hex Set Screws 10 24x5 16" 20PCS Internal Hex Set Screws 10 24x3 8" 20PCS Internal Hex Set Screws 1 4" 20x5 16" 20PCS Internal Hex Set Screws 1 4" 20x3 8" 20PCS Internal Hex Set Screws 5 16" 18x5 16" 20PCS Internal Hex Set Screws 5 16" 18x3 8" 20PCS Internal Hex Set Screws 3 8" 16x3 8" 20PCS Packing contents: HanTof 380Pcs 4 40 to 3 8" 16 304 Stainless Steel Hex Allen Head Socket Set Screws Bolts Assortment Kit Internal Hex Drive Cup Point Grub Screws with 7pcs Hex Wrenches Packed in a plastic box 03 KG to keep the pressure of the pump below the threshold The resetting spring adopts high quality material